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Input validation vulnerability in POST SMTP Mailer – Email log, Delivery Failure Notifications and Best Mail SMTP for WordPress 2.5.6

  • Severity: medium-risk
  • Status: Fixed
  • Publication: June 26, 2023

The POST SMTP Mailer plugin for WordPress is a type of software that helps websites send emails. Unfortunately, versions of this plugin up to and including 2.5.6 have a security flaw that can be taken advantage of. This flaw is called Cross-Site Request Forgery. It allows attackers to send emails to any address they choose, as long as they can trick a user with a certain type of access into clicking a link. This means they could potentially use it to reset a website administrator’s password and take control of the website.

Detected in:

POST SMTP – The #1 WordPress SMTP Plugin with Advanced Email Logging and Delivery Failure Notifications fixed vulnerable versions:
Post SMTP – The Complete WP SMTP Plugin with Email Logs and Mobile app for email Failure Notifications fixed vulnerable versions:
Post SMTP – The WordPress SMTP Plugin with Email Logs and Mobile App for Email Failure Notifications fixed vulnerable versions:
Post SMTP – WordPress SMTP Plugin with Email Logs and Mobile App for Failure Notifications – Gmail SMTP, Office 365, Brevo, Mailgun, Amazon SES and more fixed vulnerable versions:
Post SMTP – WP SMTP Plugin with Email Logs & Mobile App for Failure Alerts – Any SMTP Plus Gmail SMTP, Office 365, Brevo, Mailgun, Amazon SES, Postmark fixed vulnerable versions:
Post SMTP – WP SMTP Plugin with Email Logs and Mobile App for Failure Notifications – Gmail SMTP, Office 365, Brevo, Mailgun, Amazon SES and more fixed vulnerable versions:
POST SMTP Mailer – Email log, Delivery Failure Notifications and Best Mail SMTP for WordPress fixed vulnerable versions: >= * <= 2.5.6

This information is sourced from www.wpvulnerability.com. An open-source database of vulnerabilities maintained by the community. Help us out by submitting vulnerabilities!

Version compare shows which versions have a vulnerability. For example: >= 2.2.8 <= 2.2.21 means:

> from 2.2.8
= including 2.2.8 & 2.2.21
< to 2.2.21

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